<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 导入字体 -->
    <link href="https://fonts.googleapis.com/css?family=Lato:300|Sacramento" rel="stylesheet">
    <title>山羊の前端小窝</title>
    <style>
        body {
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #f2acac;
        }

        input#open {
            display: none;
        }

        .card {
            position: relative;
            width: 300px;
            height: 300px;
            transform-style: preserve-3d;
            transform: perspective(2500px);
            transition: .3s;
        }

        .card-front {
            position: relative;
            background-color: #fff0f3;
            width: 300px;
            height: 300px;
            transform-origin: left;
            box-shadow: 30px 0 50px rgba(0, 0, 0, 0.3);
            transition: .3s;
        }

        .card-front:before {
            content: "";
            position: absolute;
            width: 280px;
            height: 280px;
            background-color: #f38e8e;
            top: 10px;
            left: 10px;
        }

        .card-inside {
            position: absolute;
            background-color: #fff0f3;
            width: 300px;
            height: 300px;
            z-index: -1;
            left: 0;
            top: 0;
            background-color: #f5f5f5;
        }

        .open {
            position: absolute;
            width: 300px;
            height: 300px;
            left: 0;
            top: 0;
            background-color: transparent;
            z-index: 6;
            cursor: pointer;
        }

        #open:checked~.card-front {
            transform: rotateY(-145deg);
        }

        #open:checked~.card-front:before {
            z-index: 5;
            background-color: #fff0f3;
            width: 330px;
            height: 300px;
            top: 0;
            left: 0;
            background-image: url(./love.gif);
            background-size: cover;
            transform: rotateY(155deg) translateX(16px);
        }

        .note {
            position: relative;
            width: 200px;
            height: 150px;
            background-color: #fff0f3;
            top: 85px;
            left: 50px;
            color: #333;
            font: 900 35px '';
            display: flex;
            align-items: center;
            text-align: center;
            filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.3));
        }

        img {
            position: absolute;
            width: 90px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            top: 25px;
        }

        .text-one {
            position: absolute;
            color: #333;
            font-size: 15px;
            top: 30px;
            width: 300px;
            text-align: center;
            color: #ff9999;
            font-family: 'Sacramento';
        }

        .text-one:after {
            content: "";
            top: 80px;
        }
    </style>
</head>

<body>
    <div class="card">
        <input id="open" type="checkbox">
        <label class="open" for="open"></label>
        <div class="card-front">
            <img src="./love.png" alt="" class="love">
            <div class="note">Open it! 💗💗💗 </div>
        </div>
        <div class="card-inside">
            <div class="text-one">
                <h1>💌520💌</h1>
                <h2>
                    Your eyes are really beautiful, there are rain, sun and moon, mountains,
                    rivers, clouds, flowers and birds,
                    but my eyes are better, because I have you in my eyes.
                </h2>
            </div>
        </div>
    </div>
</body>

</html>